Substrate holder and display device

Abstract

By placing two circuit boards, including the communication board, close together, it is possible to stabilize the communication operation of the communication board while also achieving a thinner design. [Solution] The second substrate holder (2) is a second substrate holder connected to the first substrate holder (1), and comprises an arrangement surface (21) on which a second substrate (4) having a communication function is arranged, and at least one pressing portion (22) and an insertion portion (23), the insertion portion being inserted into an insertion hole (121) of the first substrate holder, and the pressing portion and the insertion portion clamp the plate-shaped insertion piece (13) of the first substrate holder.

Description

Technical Field

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[0001] The present invention relates to a substrate holder and a display device.

Background Art

[0002] Conventionally, a substrate connection structure is known in which a sub-substrate is connected to a main substrate, and the main substrate and the sub-substrate are fixed while suppressing unnecessary radiation. For example, in Patent Document 1, a sheet metal is fixed with a gap on the main substrate, the sub-substrate is supported in a floating state on the sheet metal, and a lid of the sheet metal is placed over the sub-substrate, thereby sandwiching the sheet metal at the intersection of the cables and suppressing unnecessary radiation. A substrate connection structure is disclosed.

Prior Art Documents

Patent Documents

[0006] To solve the above problems, a first substrate holder according to one aspect of the present invention is a first substrate holder connected to a second substrate holder that holds a second substrate having a communication function, comprising: an arrangement surface on which the first substrate is placed; a side surface erected from the end of the arrangement surface; and an insertion piece extending parallel to the arrangement surface via the side surface, wherein the side surface has a through hole through which the insertion portion of the second substrate holder is inserted, and the insertion piece is sandwiched between at least one pressing portion protruding from the end of the second substrate holder and the insertion portion. [Effects of the Invention]

[0007] According to one aspect of the present invention, it is possible to provide a substrate holder that allows two substrates, including a communication substrate, to be placed close together, while stabilizing the communication operation of the communication substrate and achieving a thinner design. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing an example of the appearance of a substrate holder according to Embodiment 1 of the present invention. [Figure 2] This is a schematic diagram illustrating the connection method between the first substrate holder and the second substrate holder shown in Figure 1. [Figure 3] This figure shows an example of a substrate holder. [Figure 4] This is a schematic diagram showing a magnified view of the connection point. [Figure 5] This is a perspective view showing an example of the appearance of the second substrate holder. [Figure 6]This figure shows an example of a second substrate holder. [Figure 7] This is a perspective view showing an example of the appearance of a substrate holder according to Embodiment 2 of the present invention. [Figure 8] Figure 7 is a perspective view showing an example of the appearance of the second substrate holder. [Figure 9] This figure shows an example of the second substrate holder shown in Figure 7. [Figure 10] This diagram illustrates the position for attaching the circuit board holder. [Figure 11] This diagram illustrates the protrusions of the insertion portion and the pressing portion. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below with reference to the drawings. In the following description, an example will be given in which the substrate holder 10 according to the present invention is used to hold a first substrate 3 and a second substrate 4 which is a communication substrate, and is attached to a display device 100 (electronic device) of a flat-screen television receiver. However, the present invention is not limited to this example and can also be applied to substrate holders attached to thin-screen devices that hold a main substrate and a communication substrate. For example, it may be a substrate holder attached to a notebook computer, tablet, digital signage, etc.

[0010] [Embodiment 1] <Overview of the substrate holder 10> Figure 1 is a perspective view showing an example of the external appearance of a substrate holder 10 according to Embodiment 1 of the present invention. Here, looking at the electronic component mounting surface 3a of the first substrate 3 from the front, the direction pointing to the left in the longitudinal direction of the substrate holder 10 is called the X1 direction, and the direction opposite to the X1 direction is called the X2 direction. The direction pointing to the upper side in the short direction of the substrate holder 10 is called the Y1 direction, and the direction opposite to the Y1 direction is called the Y2 direction. Furthermore, the direction perpendicular to X1 and X2, and perpendicular to Y1 and Y2, and moving from the back to the front of the substrate holder 10 is called the Z1 direction, and the direction opposite to the Z1 direction is called the Z2 direction. Note that when X1 and X2, Y1 and Y2, and Z1 and Z2 are not distinguished from each other and are referred to collectively as the X direction, Y direction, and Z direction.

[0011] As shown in FIG. 1, the substrate holder 10 includes a first substrate holder 1 that holds the first substrate 3 and a second substrate holder 2 that holds the second substrate 4. The second substrate holder 2 connected to the first substrate holder 1 is disposed on the X1 direction side of the first substrate holder 1.

[0012] The first substrate 3 is, for example, a control board, which is a board for controlling an electronic device. The first substrate holder 1 is a holder for holding the first substrate 3 and is, for example, composed of a metal plate. Since the first substrate holder 1 is composed of a metal plate, heat generated from the first substrate 3 can be efficiently dissipated. Also, by taking the ground of the first substrate 3 with a metal part of the first substrate holder 1, generation of noise can be suppressed.

[0013] The second substrate 4 is a board having a communication function and may be, for example, a board provided with an antenna such as Wi-Fi (registered trademark). Also, for example, it may be a board provided with an infrared sensor and mainly used for communication for receiving and transmitting signals and data.

[0014] The second substrate holder 2 is a holder for holding the second substrate 4 and is, for example, composed of a radio wave transmissive material such as ABS resin or PC-ABS (polycarbonate-ABS) resin. Since the second substrate holder 2 is composed of a radio wave transmissive material, attenuation of communication radio waves due to reflection by the second substrate holder 2 can be suppressed, and the communication operation by the second substrate 4 can be stabilized. Also, by forming it with resin or the like, the second substrate holder 2 can be easily molded.

[0015] On the other hand, since the first substrate holder 1 is composed of a metal plate, if the first substrate holder 1 is disposed in the vicinity of the second substrate 4, attenuation of communication radio waves will occur due to reflection of the communication radio waves by the first substrate holder 1, and the communication operation of the second substrate 4 will become unstable.

[0016] Therefore, the second substrate 4 is held by the second substrate holder 2 at a certain distance from the first substrate holder 1 so that the second substrate 4 and the first substrate holder 1 do not get too close to each other. Also, as will be described in detail later, the first substrate holder 1 and the second substrate holder 2 are connected without using a metal fastening member such as a screw so that communication radio waves are not attenuated.

[0017] <Connection of the first substrate holder 1 and the second substrate holder 2> FIG. 2 is a schematic diagram for explaining the connection method between the first substrate holder 1 and the second substrate holder 2. Note that FIG. 2 omits the illustration of the first substrate 3 and the second substrate 4.

[0018] As shown in FIG. 2, first, the second substrate holder 2 is arranged, for example, on the X1 direction side of the first substrate holder 1. The second substrate holder 2 may be arranged in the direction in which the electronic component mounting surface 3a of the first substrate holder 1 extends. For example, it may be arranged on the X2 direction side, or may be arranged on the Y1 direction side or the Y2 direction side.

[0019] As will be described in detail later, the second substrate holder 2 includes an insertion portion 23 that protrudes toward the first substrate holder 1 side (X2 direction) and a pair of pressing portions 22. On the other hand, the first substrate holder 1 includes an insertion hole 121 that penetrates the side surface 12 facing the insertion portion 23 in the X direction and a plate-like insertion piece 13 that extends toward the second substrate holder 2 side (X1 direction).

[0020] The insertion portion 23 of the second substrate holder 2 is inserted into the insertion hole 121 of the first substrate holder 1, and the pressing portion 22 and the insertion portion 23 sandwich the insertion piece 13 of the first substrate holder 1 between the pressing portion 22 and the insertion portion 23. Thereby, the second substrate holder 2 can be connected to the first substrate holder 1 without using a metal fastening member such as a screw.

[0021] FIG. 3 is a diagram showing an example of the substrate holder 10. The diagram indicated by reference numeral 300A is a side view of the substrate holder 10, the diagram indicated by reference numeral 300B is a front view, the diagram indicated by reference numeral 300C is a bottom view, and the diagram indicated by reference numeral 300D is a rear view. FIG. 4 is a schematic diagram showing an enlarged view of the connection portion of the substrate holder 10.

[0022] As shown in Figures 3 and 4, the first substrate holder 1 holds the first substrate 3 and connects to the second substrate holder 2 which holds the second substrate 4. As described above, the first substrate holder 1 is made of a metal plate or the like. The first substrate holder 1 has a placement surface 11, a side surface 12, an insertion hole 121, and an insertion piece 13.

[0023] The placement surface 11 is the surface on which the first substrate 3 is placed. The first substrate 3 is placed with a number of screws 111 at intervals in the Z1 direction from the placement surface 11.

[0024] The side surface 12 is the surface facing the insertion portion 23 of the second substrate holder 2, and is provided erect in the Z1 direction from the end of the placement surface 11. The side surface 12 has an insertion hole 121 that penetrates the side surface 12 in the X direction, through which the insertion portion 23 is inserted. The insertion hole 121 is provided to be slightly larger than the shape of the insertion portion 23.

[0025] The insertion piece 13 is a plate-shaped member that extends from the placement surface 11 parallel to the placement surface 11 in the X1 direction via the side surface 12. The insertion piece 13 is inserted between the pressing portion 22 and the insertion portion 23 that protrude in the X2 direction from the end of the second substrate holder 2, and is held between the pressing portion 22 and the insertion portion 23.

[0026] As described above, the second substrate holder 2 holds the second substrate 4 which has a communication function and is connected to the first substrate holder 1 which holds the first substrate 3. The second substrate holder 2 is made of a radio wave transparent material such as resin and includes a placement surface 21, a pressing portion 22, an insertion portion 23, a first positioning portion 24, and a second positioning portion 25.

[0027] The placement surface 21 is the surface on which the second substrate 4 is placed. The pressing portion 22 is a plate-shaped member that extends from the end of the placement surface 21 and protrudes toward the first substrate holder 1 (in the X2 direction). In this embodiment, the pressing portion 22 is composed of a pair of pressing portions 22a and 22b, but at least one is sufficient, and there may be three or more.

[0028] The insertion portion 23 is a rod-shaped member that protrudes from the end of the placement surface 21 toward the first substrate holder 1 (in the X2 direction) and is inserted through the insertion hole 121 of the first substrate holder 1.

[0029] As indicated by reference numerals 300C and 300D, the insertion portion 23 is provided on the surface 27 opposite to the arrangement surface 21 where the pressing portion 22 is provided, and protrudes parallel to the pressing portion 22 from the opposite surface 27. For this reason, the second substrate holder 2 has a gap G (see Figure 5) between the insertion portion 23 and the pressing portion 22. The plate-shaped insertion piece 13 of the first substrate holder 1 is inserted into this gap G and held between the pressing portion 22 and the insertion portion 23.

[0030] The insertion portion 23 is not particularly limited in shape; it just needs to be inserted through the insertion hole 121 and, together with the pressing portion 22, hold the insertion piece 13. The insertion portion 23 may be, for example, plate-shaped, triangular prism-shaped, etc. The first positioning portion 24 and the second positioning portion 25 will be described later.

[0031] In this way, the substrate holder 10 can connect the second substrate holder 2 to the first substrate holder 1 without using metal fastening members such as screws. Furthermore, since the pressing portion 22, the insertion portion 23, and the insertion piece 13 are combined and interposed between the second substrate 4 and the first substrate holder 1, the second substrate holder 2 can hold the second substrate 4 at a certain distance W (see Figure 4) from the first substrate holder 1. This makes it possible to stabilize the communication operation of the second substrate 4.

[0032] Furthermore, by positioning the second substrate holder 2 on the X1 direction side of the first substrate holder 1 and connecting them integrally, the thickness in the Z direction can be reduced. This makes it possible to make the display device 100 to which the substrate holder 10 is attached thinner.

[0033] <Positioning section> The second substrate holder 2 is further equipped with a positioning unit that determines the positions of the second substrate 4 and the first substrate holder 1 so that the second substrate 4 and the first substrate holder 1 do not come too close together.

[0034] Figure 5 is a perspective view showing an example of the external appearance of the second substrate holder 2. The figure indicated by reference numeral 500A is a perspective view seen from the placement surface 21 side, and the figure indicated by reference numeral 500B is a perspective view seen from the side 27 opposite to the placement surface 21. Figure 6 is a diagram showing an example of the second substrate holder 2. The figure indicated by reference numeral 600A is a left side view of the second substrate holder 2, the figure indicated by reference numeral 600B is a front view, the figure indicated by reference numeral 600C is a right side view, the figure indicated by reference numeral 600D is a bottom view, and the figure indicated by reference numeral 600E is a rear view.

[0035] As shown in Figures 5 and 6, the second substrate holder 2 includes a first positioning section 24 and at least one second positioning section 25.

[0036] The first positioning section 24 is provided on the surface 27 opposite to the placement surface 21 and regulates the insertion amount of the insertion piece 13 of the first substrate holder 1. As described above, when connecting the second substrate holder 2 to the first substrate holder 1, the insertion piece 13 is inserted into the gap G between the pressing portion 22 and the insertion portion 23 of the second substrate holder 2. If the insertion piece 13 is inserted too far, the first substrate holder 1 will come too close to the second substrate 4, causing the communication operation of the second substrate 4 to become unstable.

[0037] Therefore, as indicated by the reference numeral 600E, a first positioning section 24 is provided to regulate the insertion depth of the insertion piece 13 so that it is not inserted beyond the first positioning section 24 in the X1 direction. The first positioning section 24 also guides the insertion piece 13 so that it is not inserted at an angle. This makes it possible to connect the first substrate holder 1 and the second substrate holder 2 without impairing the communication function of the second substrate 4.

[0038] The second positioning unit 25 is provided on the placement surface 21 side and regulates the placement position of the second substrate 4. The second substrate 4 is fixed to the placement surface 21 of the second substrate holder 2 with a non-metallic material such as double-sided tape. At this time, as shown by reference numeral 600B, if the second substrate 4 is accidentally fixed at an angle, it may extend beyond the intended fixing range P1, and a part of the second substrate 4 may be fixed in a range P2 that is close to the first substrate holder 1.

[0039] Therefore, a second positioning section 25 is provided, and the second substrate 4 is fixed along the second positioning section 25 to guide the placement position of the second substrate 4. This makes it possible to connect the first substrate holder 1 and the second substrate holder 2 without impairing the communication function of the second substrate 4.

[0040] The second positioning section 25 may be provided in two locations, for example, at both ends 4a and 4b in the Y direction of the second substrate 4, as shown in Figure 4, or it may be provided in three or more locations, including the end 4c in the X1 direction. The number and installation positions of the second positioning section 25 are not particularly limited.

[0041] As indicated by the symbol 600E, in order to stabilize the communication operation of the second board 4, the distance W between the second board 4 and the first board holder 1 should be approximately 10 mm or more. The second board 4 may also be fixed to the mounting surface 21 with adhesive or the like, in addition to double-sided tape.

[0042] [Embodiment 2] Embodiment 2 of the present invention will be described below. For the sake of convenience, components having the same function as those described in the above embodiment will be denoted by the same reference numerals, and their descriptions will not be repeated.

[0043] Figure 7 is a perspective view showing an example of the appearance of a substrate holder 10A according to Embodiment 2 of the present invention. Figure 8 is a perspective view showing an example of the appearance of a second substrate holder 2A according to Embodiment 2 of the present invention. The figure indicated by reference numeral 800A is a perspective view seen from the side of the placement surface 21, and the figure indicated by reference numeral 800B is a perspective view seen from the side of the surface 27 opposite to the placement surface 21. Figure 9 is a diagram showing an example of the second substrate holder 2A. The figure indicated by reference numeral 900A is a left side view of the second substrate holder 2A, the figure indicated by reference numeral 900B is a front view, the figure indicated by reference numeral 900C is a right side view, the figure indicated by reference numeral 900D is a bottom view, and the figure indicated by reference numeral 900E is a rear view.

[0044] <Legs 26> As shown in Figures 7 to 9, the second substrate holder 2A further comprises legs 26 that extend from the chassis 100a (a predetermined member) of the display device 100 to which the first substrate holder 1 is attached. The legs 26 extend from the end of the second substrate holder 2A in the X1 direction toward the chassis 100a side (see Figure 10) and abut against the surface of the chassis 100a.

[0045] Figure 10 illustrates the position for attaching the substrate holder 10A. The figure indicated by reference numeral 1000A shows the substrate holder 10A attached, as viewed from the back side of the display device 100. The figure indicated by reference numeral 1000B is a cross-sectional view showing the substrate holder 10A attached to the display device 100.

[0046] As shown in Figure 10, the first substrate holder 1 of the substrate holder 10A is attached to the chassis 100a with the first substrate 3 facing the rear side of the display device 100. On the other hand, the second substrate holder 2A is connected to the first substrate holder 1 but is not fixed to the chassis 100a.

[0047] Therefore, if the display device 100 is subjected to vibration for any reason, the vibration is also transmitted to the second substrate holder 2A, and the area near the end in the X1 direction vibrates particularly. By bringing the legs 26 into contact with the surface of the chassis 100a, the stability of the connection between the first substrate holder 1 and the second substrate holder 2 is increased, and it is possible to prevent the connection between the first substrate holder 1 and the second substrate holder 2 from being released due to vibration.

[0048] <Protrusions 221, 231> Figure 11 illustrates the projections 221 and 231 of the insertion portion 23 and the retaining portion 22. The figure indicated by reference numeral 1100A shows the cross-sectional areas indicated by reference numerals 1100B and 1100C. The figure indicated by reference numeral 1100B is a cross-sectional view of the insertion portion 23 cut along the cross-sectional line BB of reference numeral 1100A. The figure indicated by reference numeral 1100C is a cross-sectional view of the retaining portion 22 cut along the cross-sectional line CC of reference numeral 1100A.

[0049] As shown in Figures 8 to 11, the insertion portion 23 of the second substrate holder 2A is provided with a projection 231 which is fixed to the first substrate holder 1 by a snap fit.

[0050] Since the insertion portion 23 is made of an elastic material such as resin, the portion with the projection 231 elastically deforms when passing through the insertion hole 121. As the insertion portion 23 returns to its original shape after passing through the insertion hole 121, the projection 231 catches on the insertion hole 121, making it difficult to pull out of the insertion hole 121. This makes the connection between the first substrate holder 1 and the second substrate holder 2A stronger.

[0051] The pressing portion 22 of the second substrate holder 2A is also provided with a projection 221 that is fixed to the first substrate holder 1 by a snap fit. When the insertion piece 13 is inserted between the insertion portion 23 and the pressing portion 22, a recess 131 is provided in the portion of the insertion piece 13 that faces the projection 221 of the pressing portion 22. When the insertion piece 13 is inserted, the projection 221 and the recess 131 are fixed by a snap fit, which makes the connection between the first substrate holder 1 and the second substrate holder 2A stronger.

[0052] 〔summary〕 A second substrate holder according to embodiment 1 of the present invention is a second substrate holder connected to a first substrate holder that holds a first substrate, and comprises an arrangement surface on which a second substrate having a communication function is arranged, and at least one pressing portion and an insertion portion protruding from the end of the arrangement surface, wherein the insertion portion is inserted into an insertion hole provided on a side surface of the first substrate holder that rises from the end of the arrangement surface on which the first substrate is arranged, and the pressing portion and the insertion portion sandwich a plate-shaped insertion piece of the first substrate holder between the insertion portion and the pressing portion.

[0053] According to the above embodiment, even if the second board equipped with communication functions is placed near the first board, the communication operation of the second board can be stabilized. Furthermore, since the first board holder and the second board holder can be connected without using metal screws or the like, the communication operation of the second board can be further stabilized. In addition, since the first board holder and the second board holder are not connected by overlapping them in the thickness direction, a thinner design can be achieved.

[0054] The second substrate holder according to aspect 2 of the present invention may include a first positioning unit that regulates the insertion amount of the insertion piece, as in aspect 1. According to the above aspect, the first substrate holder does not come too close to the second substrate, so that the first substrate holder and the second substrate holder can be connected without interfering with the communication function of the second substrate.

[0055] The second substrate holder according to embodiment 3 of the present invention may include at least one second positioning part that restricts the placement position of the second substrate, as in embodiment 1 or 2. According to the above embodiment, the second substrate does not come too close to the first substrate holder, so that the first substrate holder and the second substrate holder can be connected without interfering with the communication function of the second substrate.

[0056] In the fourth aspect of the present invention, the second substrate holder may, in any of the above aspects 1 to 3, have a projection in the insertion portion that is fixed to the first substrate holder by a snap fit. According to the above aspect, the connection between the first substrate holder and the second substrate holder can be made stronger.

[0057] The second substrate holder according to embodiment 5 of the present invention may further include legs that extend from a predetermined member of the electronic device to which the first substrate holder is attached, as described in any of embodiments 1 to 4 above. According to the above embodiment, the stability of the connection between the first substrate holder and the second substrate holder can be increased, and the connection between the first substrate holder and the second substrate holder can be prevented from being released due to vibration.

[0058] A first substrate holder according to aspect 6 of the present invention is a first substrate holder connected to a second substrate holder that holds a second substrate having a communication function, comprising: an arrangement surface on which the first substrate is placed; a side surface erected from the end of the arrangement surface; and an insertion piece extending parallel to the arrangement surface from the arrangement surface via the side surface, wherein the side surface has an insertion hole through which the insertion portion of the second substrate holder is inserted, and the insertion piece is sandwiched between at least one pressing portion protruding from the end of the second substrate holder and the insertion portion.

[0059] According to the above embodiment, even if the second board equipped with communication functions is placed near the first board, the communication operation of the second board can be stabilized. Furthermore, since the first board holder and the second board holder can be connected without using metal screws or the like, the communication operation of the second board can be further stabilized. In addition, since the first board holder and the second board holder are not connected by overlapping them in the thickness direction, a thinner design can be achieved.

[0060] A display device according to aspect 7 of the present invention may include a second substrate holder for holding a second substrate as described in any of aspects 1 to 5, and a first substrate holder for holding a first substrate as described in aspect 6.

[0061] The present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment. [Explanation of Symbols]

[0062] 1 1st board holder 11 Placement plane 12 Side view 121 Through hole 13 Inserts 2 2nd board holder 21 Placement plane 22, 22a, 22b Pressing part 221, 221a, 221b protrusion 23 Insertion part 231 Protrusion 24 First positioning unit 25 Second positioning section 26 Legs 3. First substrate 4. Second circuit board 100 Display device (electronic equipment) 100a Chassis (specified components)

Claims

1. A second substrate holder connected to a first substrate holder that holds the first substrate, A mounting surface on which a second circuit board equipped with communication functions is placed, It comprises at least one pressing portion and an insertion portion protruding from the end of the aforementioned arrangement surface, The insertion portion is inserted into an insertion hole provided on a side surface of the first substrate holder that rises from the end of the placement surface on which the first substrate is placed. The pressing portion and the insertion portion are a second substrate holder that holds a plate-shaped insertion piece of the first substrate holder between the insertion portion and the pressing portion.

2. The second substrate holder according to claim 1, further comprising a first positioning portion for regulating the insertion amount of the insertion piece.

3. The second substrate holder according to claim 1 or 2, further comprising at least one second positioning portion for regulating the placement position of the second substrate.

4. The second substrate holder according to claim 1, wherein the insertion portion comprises a projection that is fixed to the first substrate holder by a snap fit.

5. The second substrate holder according to claim 1, further comprising legs that extend from a predetermined member of an electronic device to which the first substrate holder is attached.

6. A first substrate holder connected to a second substrate holder that holds a second substrate equipped with communication functions, The placement surface on which the first substrate is placed, A side surface erected from the end of the aforementioned arrangement surface, The system comprises, via the aforementioned side surface, an insertion piece extending parallel to the arrangement surface from the arrangement surface, The aforementioned side surface has an insertion hole through which the insertion portion of the second substrate holder is inserted, The insertion piece is held between at least one pressing portion and the insertion portion, which protrudes from the end of the second substrate holder, in the first substrate holder.

7. A display device comprising a second substrate holder for holding the second substrate according to claim 1, and a first substrate holder for holding the first substrate according to claim 6.

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